Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 e34fa966fd234ccb…

MALICIOUS

Office (OLE) / .DOC

139.6 KB Created: 2019-05-21 07:46:00 Authoring application: Microsoft Office Word
MD5: 816394d70074e0abe9fd538275d9f466 SHA-1: 1d2fc181b078546be2b1618dbe125e706f400c08 SHA-256: e34fa966fd234ccbb5a94a53017bf89970e4e43a4fc5bfa3b7b8fe604db1f937
260 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File

The sample contains VBA macros, specifically an AutoOpen macro, which is a common delivery mechanism for Emotet. The critical heuristic OLE_VBA_WMI_PROCESS_CREATE indicates the macro attempts to launch a process via WMI. The ClamAV detection name 'Doc.Downloader.Emotet-10001946-0' strongly suggests the Emotet family and its downloader functionality. The macro likely downloads and executes a second-stage payload.

Heuristics 7

  • VBA WMI Win32_Process launcher critical OLE_VBA_WMI_PROCESS_CREATE
    VBA macro builds or references a WMI moniker for Win32_Process and invokes .Create to start a command. This is a high-confidence macro execution chain that often hides the WMI class name through string concatenation or helper functions.
  • ClamAV: Doc.Downloader.Emotet-10001946-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10001946-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
0c89221e537bf357fcba350de690c01166c38552d4601e2b045def3c757e435f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 5808 bytes

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